By: Aubrey Sitterson
This Friday, the new WWE Studios film 12 Rounds hits theaters starring John Cena. With a new movie and a World Heavyweight Championship Match at the 25th Anniversary of WrestleMania, Cena is at the top of his game. But the four-time World Champion's meteoric rise wasn't easy, as Cena fought long and hard to reach this rarefied air. Join us as we take a look at 12 key moments in John Cena's career - the victories and accomplishments that helped elevate him to the upper echelons of WWE Superstardom.